Improve backend structure

backend/routes/account.py

@@ -0,0 +1,107 @@
+from datetime import datetime
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from dependencies import get_current_user, get_db
+from models import LoginRequest, RegisterRequest, User
+from utils import create_token, get_password_hash, verify_password
+from validation import is_valid_password, is_valid_username
+
+router = APIRouter()
+
+@router.get("/check_auth")
+def check_auth(current_user: dict = Depends(get_current_user)):
+    return {
+        "authenticated": True,
+        "username": current_user["username"]
+    }
+
+
+@router.post("/login")
+def login(request: LoginRequest, db: Session = Depends(get_db)):
+    user = db.query(User).filter(User.username == request.username.strip()).first()
+
+    if not user or not verify_password(request.password.strip(), user.password_hash):
+        raise HTTPException(
+            status_code=401,
+            detail="Неверное имя пользователя или пароль"
+        )
+
+    user.online = True
+    user.last_seen = datetime.now()
+    db.commit()
+
+    token = create_token(user.id, user.username)
+
+    return {
+        "status": "success",
+        "message": "Login successful",
+        "token": token,
+        "username": user.username
+    }
+
+
+@router.post("/register")
+def register(request: RegisterRequest, db: Session = Depends(get_db)):
+    username = request.username.strip()
+    password = request.password.strip()
+    confirm_password = request.confirm_password.strip()
+
+    # Validate input
+    if not is_valid_username(username):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Имя пользователя должно быть от 3 до 20 символов и не содержать пробелов"
+        )
+
+    if not is_valid_password(password):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Пароль должен быть от 5 до 50 символов и не содержать пробелов"
+        )
+
+    if password != confirm_password:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Пароли не совпадают"
+        )
+
+    existing_user = db.query(User).filter(User.username == username).first()
+    if existing_user:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Это имя пользователя уже занято"
+        )
+
+    hashed_password = get_password_hash(password)
+    new_user = User(
+        username=username,
+        password_hash=hashed_password,
+        online=True,
+        last_seen=datetime.now()
+    )
+
+    db.add(new_user)
+    db.commit()
+    db.refresh(new_user)
+
+    return {
+        "status": "success",
+        "message": "Регистрация прошла успешно Теперь вы можете войти."
+    }
+
+@router.get("/logout")
+def logout(
+    current_user: dict = Depends(get_current_user),
+    db: Session = Depends(get_db)
+):
+    user = db.query(User).filter(User.id == current_user["user_id"]).first()
+    if user:
+        user.online = False
+        user.last_seen = datetime.now()
+        db.commit()
+
+    return {
+        "status": "success",
+        "message": "Logged out successfully"
+    }